The Nakamichi omni is certainly closed. The slots have no function when the=
omni is in place. (Would be a very strange design, otherwise.)
Klas.
At 03:48 2005-02-24, you wrote:
>Thanks much Klas, clear explanation, and confirms what I thought I was
>"understanding." So, a set up like my Naks, where there's an
>interchangeable capsule for directional and omni probably doesn't benefit
>from the tubular sealing of a true omni, as the side baffling, i.e. openin=
g
>behind the cap, are always there?
>
>Ken
>
>
>
>
>
>At 02:23 PM 2/23/2005, you wrote:
> >Sorry, I'm sending the wrong postings to the wrong people here.
> >
> >An omni is a closed cylindrical can with a membrane as one of it's sides=
.
> >The pressure inside of it tends to be constant, and tend to keep the
> >membrane still, not so much affected by wind. (Or movement - handling
> >noise). The membrane moves because the pressure inside the can is compar=
ed
> >to the pressure outside of it.
> >
> >A directional mic is a tube, with a membrane as the only one side. Both
> >sides of the membrane will get affected by wind, and there is no "consta=
nt
> >pressure" tending to hold the membrane still.
> >Therefore a directional mic need a much better wind protection than an o=
mni
> >and is also more sensitive to handling noise.
> >
> >Imagine a tin-can where you have removed one side and replaced it with a
> >piece of balloon-rubber. Imagine you blow on the rubber. It will not go =
so
> >much inwards, as the pressure inside the can will hold it where it is.
> >Imagine you move it. The same thing will happen. The membrane will not m=
ove
> >much.
> >
> >Now imagine that you take a tube and place the same rubber over it and t=
ry
> >the same experiments.
> >
> >If both have excellent suspension and wind protection, you will not find
> >much difference.
> >
> >Klas.
> >
> >
> >At 17:51 2005-02-23, you wrote:
> >
> > >Thanks, Klas, and let me get Rob off the hook - it wasn't him who post=
ed
> > >this but me, a newbie who really only has experience with indoor
> > >recording. So I'm hearing this about omnis and wind reduction for the
> > >first time. I'm not entirely clear on the theory behind this...
> > >
> > >As far as zeroing my meters, (0db, but not clipping) I did have the pr=
es
> > >up pretty far as the sounds were distant and only reaching -6DB
> > >max. Sections where the wind was calm reveal a recording free of
> > >distortion so far as I can tell so far.
> > >
> > >Anyway thanks again, I have some reading to do about basics, obviously=
.
> > >
> > >Ken
> > >
> > >
> > >
> > >
> > >
> > >
> > >[Non-text portions of this message have been removed]
> > >
> > >
> > >
> > >
> > >"Microphones are not ears,
> > >Loudspeakers are not birds,
> > >A listening room is not nature."
> > >Klas Strandberg
> > >Yahoo! Groups Links
> > >
> > >
> > >
> > >
> >
> >Telinga Microphones, Botarbo,
> >S-748 96 Tobo, Sweden.
> >Phone & fax int + 295 310 01
> >email:
> >
> >
> >[Non-text portions of this message have been removed]
> >
> >
> >
> >"Microphones are not ears,
> >Loudspeakers are not birds,
> >A listening room is not nature."
> >Klas Strandberg
> >
> >
> >Yahoo! Groups Sponsor
> >ADVERTISEMENT
> >
> >
> >----------
> >Yahoo! Groups Links
> > * To visit your group on the web, go to:
> > *
> >
> <http://groups.yahoo.com/group/naturerecordists/>http://groups.yahoo.com/=
group/naturerecordists/
>
> >
> > *
> > * To unsubscribe from this group, send an email to:
> > *
> >
> <=3DUnsubscrib=
e>
>
> >
> > *
> > * Your use of Yahoo! Groups is subject to the
> > <http://docs.yahoo.com/info/terms/>Yahoo! Terms of Service.
>
>
>
>
>
>"Microphones are not ears,
>Loudspeakers are not birds,
>A listening room is not nature."
>Klas Strandberg
>Yahoo! Groups Links
>
>
>
>
Telinga Microphones, Botarbo,
S-748 96 Tobo, Sweden.
Phone & fax int + 295 310 01
email:
________________________________________________________________________
________________________________________________________________________
|